Mexico is the fourth largest honey producer and fifth largest honey exporter in the world. A Smithsonian researcher and colleagues helped rural farmers in Mexico […]

The post Genetically modified soybean pollen threatens Mexican honey sales appeared first on Smithsonian Insider.

For the first time, a new public database will link genetic data with records of where and when the samples it was taken from were […]

The post A first: New website reveals origin of genetic samples and date collected appeared first on Smithsonian Insider.

The structural and nonlinear optical properties of a new anilinium hybrid crystal of chemical formula (C6H7NCl+·NO3−)3 have been investigated. The crystal structure was determined from single-crystal X-ray diffraction measurements performed at a temperature of 100 K which show that the compound crystallizes in a noncentrosymmetric space group (Pna21). The structural analysis was coupled with Hirshfeld surface analysis to evaluate the contribution of the different intermolecular interactions to the formation of supramolecular assemblies in the solid state that exhibit nonlinear optical features. This analysis reveals that the studied compound is characterized by a three-dimensional network of hydrogen bonds and the main contributions are provided by the O...H, C...H, H...H and Cl...H interactions, which alone represent ∼85% of the total contributions to the Hirshfeld surfaces. It is noteworthy that the halogen...H contributions are quite comparable with those of the H...H contacts. The nonlinear optical properties were investigated by nonlinear diffuse femtosecond-pulse reflectometry and the obtained results were compared with those of the reference material LiNbO3. The hybrid crystals exhibit notable second (SHG) and third (THG) harmonic generation which confirms its polarity is generated by the different intermolecular interactions. These measurements also highlight that the THG signal of the new anilinium compound normalized to its SHG counterpart is more pronounced than for LiNbO3.

Simulink might produce an incorrect sorted order for a model that meets all of the following conditions:

• The model contains blocks from the SoC Blockset
• The Signal logging option is selected in the model configuration set
• Signals using asynchronous sample time are configured for logging

Su Ming Sun
Apr 16, 2020; 0:jcs.237628v1-jcs.237628
Articles

Norbert Volkmar
Apr 24, 2020; 133:jcs243519-jcs243519
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Jordi Lambert
Apr 8, 2020; 133:jcs235762-jcs235762
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A National Science Foundation-funded study found that Charles Darwin's famous finches defy what has long been considered a key to evolutionary success: genetic diversity. The research on finches of the Galapagos Islands could change the way conservation biologists think about a species' potential for extinction in naturally fragmented populations. Researchers examined 212 tissue samples from museum specimens and living birds. Some of the museum specimens in the study were collected by Darwin himself in 1835. Only one of the extinct populations, a species called the vegetarian finch, had lower genetic diversity compared to modern survivors. Specifically, researchers believe a biological phenomenon called sink-source dynamics is at play in which larger populations of birds from other islands act as a "source" of immigrants to the island population that is naturally shrinking, the "sink." Without these immigrant individuals, the natural population on the island likely would continue to dwindle to local extinction. The immigrants have diverse genetics because they are coming from a variety of healthier islands, giving this struggling "sink" population inflated genetic diversity.

Image credit: Jose Barreiro

Full Text:

The molecular mechanism used by many bacteria to kill neighboring cells has redundancy built into its genetic makeup, which could allow for the mechanism to be expressed in different environments, say researchers at Penn State and the University of Wisconsin-Madison. Their new study provides insights into the molecular mechanisms of competition among bacteria. "Many organisms, including humans, acquire bacteria from their environment," said Tim Miyashiro, a biochemist and molecular biologist at Penn State and the leader of the research team. "These bacteria can contribute to functions within the host organism, like how our gut bacteria help us digest food. We're interested in the interactions among bacteria cells, and between bacteria and their hosts, to better understand these mutually beneficial symbiotic relationships." Cells of the bioluminescent bacteria Vibrio fisheri take up residence in the light organ of newly hatched bobtail squid. At night, the bacteria produce a blue glow that researchers believe obscures a squid's silhouette and helps protect it from predators. The light organ has pockets, or crypts, in the squid's skin that provide nutrients and a safe environment for the bacteria. "When the squid hatches, it doesn't yet have any bacteria in its light organ," said Miyashiro. "But bacteria in the environment quickly colonize the squid's light organ." Some of these different bacteria strains can coexist, but others can't. "Microbial symbioses are essentially universal in animals, and are crucial to the health and development of both partners," says Irwin Forseth, a program director in the National Science Foundation's Division of Integrative Organismal Systems, which funded the research. "The results from this study highlight the role small genetic changes can play in microbe interactions. Increased understanding will allow us to better predict organisms' performance in changing environments."

Image credit: Andrew Cecere

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Scientists have recovered the first genetic data from an extinct bird in the Caribbean, thanks to the remarkably preserved bones of a Creighton's caracara in a flooded sinkhole on Great Abaco Island in the Bahamas. Studies of ancient DNA from tropical birds have faced two formidable obstacles. Organic material quickly degrades when exposed to heat, light and oxygen. And birds' lightweight, hollow bones break easily, accelerating the decay of the DNA within. But the dark, oxygen-free depths of a 100-foot blue hole known as Sawmill Sink provided ideal preservation conditions for the bones of Caracara creightoni, a species of large carrion-eating falcon that disappeared soon after humans arrived in the Bahamas about 1,000 years ago. Florida Museum of Natural History researcher Jessica Oswald and her colleagues extracted and sequenced genetic material from the 2,500-year-old C. creightoni femur. Because ancient DNA is often fragmented or missing, the team had modest expectations for what they would find –- maybe one or two genes. But instead, the bone yielded 98.7% of the bird's mitochondrial genome, the DNA most living things inherit from their mothers. The mitochondrial genome showed that C. creightoni is closely related to the two remaining caracara species alive today: the crested caracara and the southern caracara. The three species last shared a common ancestor between 1.2 and 0.4 million years ago. "This project enhanced our understanding of the ecological and evolutionary implications of extinction, forged strong international partnerships, and trained the next generation of researchers," says Jessica Robin, a program director in National Science Foundation's Office of International Science and Engineering, which funded the study.

Image credit: Florida Museum photo by Kristen Grace

Many U.S. farmers who grow genetically engineered (GE) crops are realizing substantial economic and environmental benefits -- such as lower production costs, fewer pest problems, reduced use of pesticides, and better yields -- compared with conventional crops, says a new report from the National Research Council.

The National Academy of Sciences and the National Academy of Medicine are launching a major initiative to guide decision making about controversial new research involving human gene editing.

The analysis used by federal agencies to set standards for fuel economy and greenhouse gas emissions for new U.S. light-duty vehicles -- passenger cars and light trucks -- from 2017 to 2025 was thorough and of high caliber overall, says a new report from the National Research Council.

Scientific advances in molecular biology over the past 50 years have produced remarkable progress in medicine. Some of these advances have also raised important ethical and societal issues – for example, about the use of recombinant DNA technologies or embryonic stem cells.

We thank the organizers of our International Summit on Human Gene Editing for their thoughtful concluding statement and welcome their call for us to continue to lead a global discussion on issues related to human gene editing.

The increase in the number of children from low-income families who are receiving federal disability benefits for speech and language disorders over the past decade parallels the rise in the prevalence of these disorders among all U.S. children, says a new report by the National Academies of Sciences, Engineering, and Medicine.

An extensive study by the National Academies of Sciences, Engineering, and Medicine has found that new technologies in genetic engineering and conventional breeding are blurring the once clear distinctions between these two crop-improvement approaches.

The emerging science of gene drives has the potential to address environmental and public health challenges, but gene-drive modified organisms are not ready to be released into the environment and require more research in laboratories and highly controlled field trials, says a new report from the National Academies of Sciences, Engineering, and Medicine.

U.S. adults perform comparably to adults in other economically developed countries on most measures of science knowledge and support science in general, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The National Academies Committee on Genetically Engineered Crops - Past Experiences and Future Prospects authored an almost 600-page landmark report, released in May 2016. It was perhaps the most comprehensive analysis of genetically engineered crops to date.

Joint statements from the national science academies of the G7 nations were delivered today to the Italian government in advance of the G7 Summit to be held in Taormina, Italy, at the end of May.

A new report from the National Academies of Sciences, Engineering, and Medicine calls for a series of substantial reforms to strengthen the U.S. biomedical research system for the next generation of scientists.

The National Academies of Sciences, Engineering, and Medicine are launching the “New Voices in Sciences, Engineering, and Medicine” initiative to identify outstanding early-career science, engineering, and medicine (SEM) leaders.

His expression said it all.  KPCC Director of On-Air Fundraising Rob Risko walked into my studio about 10:45 a.m. to update me on where we stood with our Fall member drive.  I knew we had a $10,000 challenge that had started first thing in the morning, but didn't have any idea how far behind we had fallen in reaching the required 1,000 member threshold.

 Rob gave it to me straight -- we had to attract well over 500 members during "AirTalk" to meet the challenge.  I knew that was nearly impossible during a full two-hour show, let alone one that would be significantly pre-empted by the President's news conference.  Regardless, I knew we had to do our best and hope our listeners would contribute in a record-setting way.  Boy, did they.

We didn't start our show until 11:25 a.m., following the news conference.  Right off the bat the phones started ringing and the KPCC website starting humming.  The volume of member contributions stayed high with only a few exceptions.  There were times we could barely keep track of how many members were coming in.  It was one of the most exciting and rewarding experiences I've had in all my years hosting "AirTalk."

I've been on a high all afternoon thinking about how commited our listeners are to the mission of KPCC.  You've made me very happy, and very proud of our audience.  Thank you for a wonderful show of support.  I will long remember this day.

By the way, we set a fundraising record for "AirTalk" with today's show.  We're still tallying it all up.  I'll have the totals for you tomorrow morning at 11.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Albert Rad, a mobile phone wholesaler who fled religious persecution in Iran decades ago, said that he fully backs President Trump's decision to assassinate Iran's top military commander. ; Credit: Josie Huang/LAist

Los Angeles is home to the largest Iranian population outside of Iran. The killing of top Iranian commander Qassem Suleimani is generating some strong emotions here. KPPC’s Josie Huang reports from Persian Square in Westwood. 

This content is from Southern California Public Radio. View the original story at SCPR.org.

Full Text:

A National Science Foundation-funded study found that Charles Darwin's famous finches defy what has long been considered a key to evolutionary success: genetic diversity. The research on finches of the Galapagos Islands could change the way conservation biologists think about a species' potential for extinction in naturally fragmented populations. Researchers examined 212 tissue samples from museum specimens and living birds. Some of the museum specimens in the study were collected by Darwin himself in 1835. Only one of the extinct populations, a species called the vegetarian finch, had lower genetic diversity compared to modern survivors. Specifically, researchers believe a biological phenomenon called sink-source dynamics is at play in which larger populations of birds from other islands act as a "source" of immigrants to the island population that is naturally shrinking, the "sink." Without these immigrant individuals, the natural population on the island likely would continue to dwindle to local extinction. The immigrants have diverse genetics because they are coming from a variety of healthier islands, giving this struggling "sink" population inflated genetic diversity.

Image credit: Jose Barreiro

Full Text:

The molecular mechanism used by many bacteria to kill neighboring cells has redundancy built into its genetic makeup, which could allow for the mechanism to be expressed in different environments, say researchers at Penn State and the University of Wisconsin-Madison. Their new study provides insights into the molecular mechanisms of competition among bacteria. "Many organisms, including humans, acquire bacteria from their environment," said Tim Miyashiro, a biochemist and molecular biologist at Penn State and the leader of the research team. "These bacteria can contribute to functions within the host organism, like how our gut bacteria help us digest food. We're interested in the interactions among bacteria cells, and between bacteria and their hosts, to better understand these mutually beneficial symbiotic relationships." Cells of the bioluminescent bacteria Vibrio fisheri take up residence in the light organ of newly hatched bobtail squid. At night, the bacteria produce a blue glow that researchers believe obscures a squid's silhouette and helps protect it from predators. The light organ has pockets, or crypts, in the squid's skin that provide nutrients and a safe environment for the bacteria. "When the squid hatches, it doesn't yet have any bacteria in its light organ," said Miyashiro. "But bacteria in the environment quickly colonize the squid's light organ." Some of these different bacteria strains can coexist, but others can't. "Microbial symbioses are essentially universal in animals, and are crucial to the health and development of both partners," says Irwin Forseth, a program director in the National Science Foundation's Division of Integrative Organismal Systems, which funded the research. "The results from this study highlight the role small genetic changes can play in microbe interactions. Increased understanding will allow us to better predict organisms' performance in changing environments."

Image credit: Andrew Cecere

Full Text:

Scientists have recovered the first genetic data from an extinct bird in the Caribbean, thanks to the remarkably preserved bones of a Creighton's caracara in a flooded sinkhole on Great Abaco Island in the Bahamas. Studies of ancient DNA from tropical birds have faced two formidable obstacles. Organic material quickly degrades when exposed to heat, light and oxygen. And birds' lightweight, hollow bones break easily, accelerating the decay of the DNA within. But the dark, oxygen-free depths of a 100-foot blue hole known as Sawmill Sink provided ideal preservation conditions for the bones of Caracara creightoni, a species of large carrion-eating falcon that disappeared soon after humans arrived in the Bahamas about 1,000 years ago. Florida Museum of Natural History researcher Jessica Oswald and her colleagues extracted and sequenced genetic material from the 2,500-year-old C. creightoni femur. Because ancient DNA is often fragmented or missing, the team had modest expectations for what they would find –- maybe one or two genes. But instead, the bone yielded 98.7% of the bird's mitochondrial genome, the DNA most living things inherit from their mothers. The mitochondrial genome showed that C. creightoni is closely related to the two remaining caracara species alive today: the crested caracara and the southern caracara. The three species last shared a common ancestor between 1.2 and 0.4 million years ago. "This project enhanced our understanding of the ecological and evolutionary implications of extinction, forged strong international partnerships, and trained the next generation of researchers," says Jessica Robin, a program director in National Science Foundation's Office of International Science and Engineering, which funded the study.

Image credit: Florida Museum photo by Kristen Grace

Source: Streetwise Reports   05/01/2020

Seattle Genetics Inc. (SGEN:NASDAQ) yesterday announced financial results for the first quarter ended March 31, 2020.

The company also provided an update on commercial results achieved in the quarter for its lead medicines including ADCETRIS® (brentuximab vedotin) and PADCEV^™ (enfortumab vedotin-ejfv) and the U.S. Food and Drug Administration's (FDA) approval and launch of TUKYSA^™ (tucatinib).

The company's President and CEO Clay Siegall, Ph.D., commented, "We have had a remarkable start to 2020, delivering record product sales in the first quarter that are now coming from both ADCETRIS and PADCEV. Notably, strong PADCEV sales in the first full quarter of launch reflect the unmet need among patients with metastatic bladder cancer...With the recent approval of TUKYSA for patients with metastatic HER2-positive breast cancer, we have now launched our third product just four months after our second...We are also preparing for European commercial operations and have hired general managers in major European markets ahead of potential ex-U.S. approvals of TUKYSA. With two new products, growing revenues, and an advancing pipeline of novel cancer programs, we have exciting prospects for future growth."

The company highlighted that ADCETRIS net sales in the U.S. and Canada increased by 22% to $164.1 million in Q1/20, compared to $135 million in Q1/19. The firm indicated that PADCEV net sales in the U.S. reached $34.5 million in Q1/20, which was its first full quarter of commercialization. The company added that royalty revenues in Q1/20 were $20.4 million and collaboration and license agreement revenues in Q1/20 totaled $15.6 million.

The firm reported a net loss for Q1/20 of $168.4 million, or $0.98 per diluted share, compared to net loss of $13.3 million, or $0.08 per diluted share for Q1/19. The company explained that "the net loss in Q1/20 included a net investment loss of $59.1 million primarily associated with its common stock holdings in Immunomedics, which are marked-to-market, compared to a net investment gain of $38.1 million in Q1/19."

The company advised that its TUKYSA was approved by the FDA for patients with HER2-positive metastatic breast cancer who have received one or more prior anti-HER2 regimens in the metastatic setting. The firm mentioned that it also expects to be able to report topline data in late Q2/20 or Q3/20 for the innovaTV 204 pivotal trial of tisotumab vedotin in patients with recurrent and/or metastatic cervical cancer who have relapsed or progressed after standard of care treatment.

The company noted that it is regularly monitoring the effects of the COVID-19 situation and is maintaining its business outlook estimates for FY/20 that it provided previously on February 6, 2020. For FY/20 it expects ADCETRIS net product sales of $675–700 million, royalty revenues of $105–115 million and collaboration and license agreement revenues of $30–50 million. The firm advised that for FY/20 it expects that R&D expenses will range from $860–950 million with SG&A expenses of $475–525 million.

Seattle Genetics is headquartered in Bothell, Wash., and is a global biotechnology company focused on discovering and commercializing cancer medicines.

Seattle Genetics has a market capitalization of around $23.7 billion with approximately 172.5 million shares outstanding. SGEN shares opened 2.75% higher today at $141.00 (+$3.77, +2.75%) over yesterday's $137.23 closing price and reached a new 52-week high price this morning of $157.00. The stock has traded today between $140.05 and $157.00 per share and is currently trading at $148.51 (+$11.28, +8.22%).

Disclosure:
1) Stephen Hytha compiled this article for Streetwise Reports LLC and provides services to Streetwise Reports as an independent contractor. He or members of his household own securities of the following companies mentioned in the article: None. He or members of his household are paid by the following companies mentioned in this article: None.
2) The following companies mentioned in this article are billboard sponsors of Streetwise Reports: None. Click here for important disclosures about sponsor fees.
3) Comments and opinions expressed are those of the specific experts and not of Streetwise Reports or its officers. The information provided above is for informational purposes only and is not a recommendation to buy or sell any security.
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5) From time to time, Streetwise Reports LLC and its directors, officers, employees or members of their families, as well as persons interviewed for articles and interviews on the site, may have a long or short position in securities mentioned. Directors, officers, employees or members of their immediate families are prohibited from making purchases and/or sales of those securities in the open market or otherwise from the time of the interview or the decision to write an article until three business days after the publication of the interview or article. The foregoing prohibition does not apply to articles that in substance only restate previously published company releases.
6) This article does not constitute medical advice. Officers, employees and contributors to Streetwise Reports are not licensed medical professionals. Readers should always contact their healthcare professionals for medical advice.

( Companies Mentioned: SGEN:NASDAQ, )

Research into mercury has identified two genes in bacteria that appear to be required for turning the metal into its most toxic form, methylmercury. The study adds to a growing body of research that helps us to understand the transformations that mercury undergoes in the environment and the microbes involved in these transformations.

Geography and ecology are key factors that have influenced the genetic makeup of human groups in southern Africa, according to new research discussed in the journal GENETICS, a publication of the Genetics Society of America. By investigating the ancestries of twenty-two KhoeSan groups, including new samples from the Nama and the ≠Khomani, researchers conclude that the genetic clustering of southern African populations is closely tied to the ecogeography of the Kalahari Desert region.

read more

Researchers at the Stowers Institute have established a definitive link between the makeup of the microbiome, the host immune response, and an organism's ability to heal itself.

read more

University of Oregon researchers have found links between the levels of antimicrobial chemicals and antibiotic-resistance genes in the dust of an aging building used for athletics and academics.

read more

Brownfield regeneration and land use planning are complex issues which encompass many different environmental, economic and social dimensions. This Thematic Issue brings together quality research into brownfield regeneration, which highlights insights and successful strategies from across Europe and beyond.

General acceptance of offshore wind farms is most positively influenced by reductions in fossil fuel imports and contributions to global warming mitigation, and most negatively by concerns about increases in electricity price and impacts on scenic views, US research suggests. Other factors, such as reductions in air pollution, were not closely related to general acceptance even though on average the public rated them as important.

For children with autism and a class of genetic disorders, exposure to diagnostic ultrasound in the first trimester of pregnancy is linked to increased autism severity, according to a study by researchers at UW Medicine, UW Bothell and Seattle Children's Research Institute.

read more

Quick Claim Settlement will enable the company to settle claims of up to Rs. 20,000/- and release the settlement amount within 30 minutes in customer’s bank account.

To tackle the Covid-19 situation, Kotak General Insurance is trying to prepare rapidly, test critical paths and scale up

Frank, Philipp, 1884-1966

High levels of waste production must be tackled as part of the move towards sustainable living. Recent research has used Sweden as a case study to assess the strength of suitable policies and strategies that are required to break the link between economic growth and waste generation.

A recent study highlights the role of the public sector in encouraging private investment in natural and cultural brownfield regeneration projects by analysing four models of financing: public-private partnerships, land value finance mechanisms, urban development funds and impact investment funds. Local governments, it is suggested, are well placed to identify and select the most suitable financing mechanisms for redevelopment projects.

A study has evaluated the Municipal Urbanisation Tax (MUT)—a specific tax for the construction, maintenance, and reinforcement of urban infrastructure—in the city of Tomar, Portugal. The city has a new formula for the tax which is simpler and reinforces efforts to contain urban sprawl. The MUT is a one-time charge applied to new development through land subdivision (Loteamento) or individual buildings, similar to an impact fee. Other municipalities aiming to direct urban regeneration towards their brownfield sites, for example, could learn from the Portuguese experiences.

A new study from Belgium has gathered community views of brownfield regeneration. Results indicate that the often overlooked aspect of landscape quality, such as green spaces, visually-attractive areas and cultural heritage, is important in people’s opinions of brownfield regeneration schemes.

Low oxygen levels (‘hypoxia’) are a pressing concern for marine and freshwater ecosystems worldwide, and this may deteriorate as ocean temperatures rise. Hypoxia causes stress in organisms, which can cause reproductive impairments that persist across generations — even the offspring that have never been exposed to hypoxia. Previous studies discovered that hypoxia can disrupt sex hormones, resulting in birth defects and affecting reproduction of male fish over several generations. This study shows how hypoxia can also affect female marine medaka (Oryzias melastigma) over multiple generations — and thus may pose a significant threat to the sustainability of natural fish populations worldwide.